fuel reservoir
nounUK /ˈfjuːəl ˈrɛzəvwɑː/
US /ˈfjuːəl ˈrɛzərvwɑːr/
A fuel reservoir is a tank or container that holds fuel so it can be used later.
The car's fuel reservoir was almost empty, so we stopped at the gas station.
OTHER MEANINGS
2. A natural or artificial place where fuel is stored in large amounts.
The power plant has a huge fuel reservoir for the winter.
3. A supply of fuel kept in reserve for future use.
The army built a fuel reservoir near the base.
4. The part of a vehicle or machine that holds fuel before it reaches the engine.
Check the fuel reservoir regularly to avoid running out.